Discovery in a cave of a tiny shark with 'slaves' like teeth

In the bowels of the world's longest cave, researchers have discovered the fossilized remains of a 340 million-year-old shark.This small predator, named Clavusodens mcginnisi, intrigued by its modest size and clove-shaped teeth, witnesses to a now-disappeared marine ecosystem This discovery, published in the Journal of Paleontology, is part of a broader project to inventory the fossils of the cave "Mammoth Cave" in Kentucky. Scientists explore g…